Cal’s made some awful decisions - relationships, jobs, the 90s. She's made some great ones as well, she just didn't realise at the time. People say that everything happens for a reason, but what if it's just a terrible reason? Can you really learn from your mistakes, or is hindsight just nostalgia for the path you didn't take? Cal's trying to make sense of everything she’s ever done. Or she might just tell some jokes. You’ll only know afterwards.